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VID 28331
Severity 30
Port 139,445
Protocol TCP
Class SMB
Detailed Description A user or group with the 'Deny access to this computer from the network' right is detected. 'Deny access to the computer from the network' prohibits a user or group from connecting to the computer from the network. This right is not normally granted to any user or group by default.

* Note: This check requires an account with administrative privileges which can log into the host to scan. Absence of these condition will result in the check not being performed and a False Negative for all vulnerable hosts.

* References:
http://www.microsoft.com/technet/security/prodtech/win2000/win2khg/appxb.asp

* Platforms Affected:
Windows Any version
Recommendation Check user rights for the 'Deny access to this computer from the network', and remove any names disallowed by your security policy.

To audit and revoke this privilege:

For a Windows 2000 domain:

1. Start Microsoft Management Console (mmc). From the Windows Start menu, select Run, type mmc, and click OK.
2. Add Group Policy Snap-in.
3. Browse Group Policy Objects.
4. Select the Domain Policy of interest.
5. Traverse the following path:
Computer Configuration, Windows Settings, Security Settings, Local Policies, User Rights Assignment and Deny access to this computer from the network.
6. Set the user right to desired setting according to your administration policy.

For a stand-alone Windows 2000 computer:

1. On the affected computer, start gpedit.msc. From the Windows Start menu, select Run, type gpedit.msc, and click OK. The focus is local computer by default.
2. Traverse the following path:
Computer Configuration, Windows Settings, Security Settings, Local Policies, User Rights Assignment and Deny access to this computer from the network.
3. Set the user right to desired setting according to your administration policy.

For Windows XP, 2003, 7, 2008, 8, 2012, 10, 2016, 2019 computer:

1. On the affected computer, start gpedit.msc. From the Windows Start menu, select Run, type gpedit.msc, and click OK. The focus is local computer by default.
2. Traverse the following path:
Computer Configuration, Windows Settings, Security Settings, Local Policies, User Rights Assignment and Deny access to this computer from the network.
3. Set the user right to desired setting according to your administration policy.
Related URL (CVE)
Related URL (SecurityFocus)
Related URL 3816 (ISS)